/* =======================================================
   OB Gelir Vergisi Hesaplayıcı
   ======================================================= */

:root {
  --obgv-primary: #2563eb;       /* Canlı Mavi (Ana Renk) */
  --obgv-primary-hover: #1d4ed8;
  --obgv-dark-bg: #1e293b;       /* Koyu Lacivert/Siyah */
  --obgv-dark-surface: #0f172a;
  --obgv-border: #e2e8f0;
  --obgv-text: #334155;          /* Genel Metin */
  --obgv-input-text: #1e293b;    /* Koyu Metin */
  --obgv-muted: #64748b;         /* Silik Metin */
  --obgv-success: #10b981;       /* Kâr/Vurgu Yeşili */
  
  --obgv-warn-bg: #fff7ed;
  --obgv-warn-bd: #ffedd5;
  --obgv-warn-tx: #9a3412;

  --obgv-err-bg: #fef2f2;
  --obgv-err-bd: #fecaca;
  --obgv-err-tx: #b91c1c;
  
  --obgv-radius: 12px;
}

.obgv {
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--obgv-text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.obgv * { box-sizing: border-box; }

.obgv-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 1.2rem; 
  color: #1e293b;
  letter-spacing: -0.02em;
  text-align: center;
}

/* Sol / sağ grid */
.obgv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.obgv-card {
  background: #ffffff;
  border-radius: var(--obgv-radius);
  border: 1px solid var(--obgv-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Sol Kart: Form */
.obgv-grid > .obgv-card:first-child { 
  padding: 1.25rem; 
}

/* Sağ Kart: Sonuçlar */
.obgv-grid > .obgv-card:last-child {
  background: linear-gradient(145deg, var(--obgv-dark-bg), var(--obgv-dark-surface));
  color: #f1f5f9;
  border: none;
  padding: 1.25rem; 
}

/* ---------- FORM ---------- */
.obgv .lbl {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--obgv-text);
  margin-bottom: 0.3rem;
  letter-spacing: 0.01em;
}

.obgv .mt { margin-top: 0.75rem; }

/* Select */
.obgv-select-row {
  display: flex;
  align-items: center;
  position: relative;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 0;
  transition: all 0.2s ease-in-out;
}

.obgv-select-row:focus-within {
  background-color: #fff;
  border-color: var(--obgv-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.obgv-select {
  width: 100%;
  height: 48px;
  border: 0;
  outline: none;
  background: transparent;
  font-size: 15px;
  color: var(--obgv-input-text);
  font-weight: 500;
  appearance: none;
  padding: 0 32px 0 16px;
  cursor: pointer;
}

.obgv-select-row::after {
  content: "▾";
  position: absolute;
  right: 16px;
  color: var(--obgv-muted);
  font-weight: 900;
  font-size: 14px;
  pointer-events: none;
}

/* Amount input */
.obgv .amount-row {
  display: flex;
  align-items: center;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 0;
  position: relative;
  transition: all 0.2s ease-in-out;
}

.obgv .amount-row:focus-within {
  background-color: #fff;
  border-color: var(--obgv-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.obgv .amount-row .currency {
  position: absolute;
  left: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--obgv-muted);
  pointer-events: none;
  z-index: 2;
}

.obgv .amount-row input {
  flex: 1;
  height: 48px;
  border: 0;
  background: transparent;
  font-size: 15px;
  font-weight: 500;
  color: var(--obgv-input-text);
  outline: none;
  padding: 0 16px 0 32px;
  border-radius: 8px;
}

.obgv .amount-row input::placeholder { color: #94a3b8; font-weight: 400; }

.obgv .hint {
  font-size: 12px;
  color: var(--obgv-muted);
  margin-top: 4px;
  display: block;
}

/* Alerts */
.obgv-alert {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.5;
  font-weight: 500;
}
.obgv-alert:empty, .obgv-alert--hidden { display: none; }

.obgv-alert--warn {
  background: var(--obgv-warn-bg);
  border: 1px solid var(--obgv-warn-bd);
  color: var(--obgv-warn-tx);
  padding: 12px;
  border-radius: 8px;
}

.obgv-alert--error {
  background: var(--obgv-err-bg);
  border: 1px solid var(--obgv-err-bd);
  color: var(--obgv-err-tx);
  padding: 12px;
  border-radius: 8px;
}

/* Aksiyon butonları */
.obgv .actions {
  margin-top: 1.2rem;
  display: flex;
  gap: 1rem;
}

.obgv .btn.lg {
  height: 40px; 
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.obgv .btn.primary {
  background: var(--obgv-primary);
  color: #fff;
  border: none;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.obgv .btn.primary:hover {
  background: var(--obgv-primary-hover);
  transform: translateY(-1px);
}

.obgv .btn.ghost {
  background: #fff;
  border: 1px solid var(--obgv-border);
  color: var(--obgv-muted);
}
.obgv .btn.ghost:hover {
  background: #f8fafc;
  color: var(--obgv-text);
}

/* ---------- RESULTS (SAĞ KART) ---------- */
.obgv .sec-hd {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  margin-top: 0; 
  margin-bottom: 0.8rem;
}

.obgv .results {
  display: flex;
  flex-direction: column;
}

.obgv .res {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0; 
  font-size: 14px;
  color: #cbd5e1;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.obgv .res:last-child { border-bottom: none; }

.obgv .res-hd {
  font-weight: 400;
  color: #cbd5e1;
}

.obgv .res-val {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.obgv .res.strong {
  background: rgba(255,255,255,0.05);
  margin: 0.2rem -1.25rem; 
  padding: 8px 1.25rem;
  border: none;
}
.obgv .res.strong .res-hd { color: #fff; font-weight: 700; }
.obgv .res.strong .res-val { font-size: 15px; }

/* Büyük Vurgu (Tahmini Gelir Vergisi için) */
.obgv .res.strong.big {
  background: var(--obgv-success);
  margin-top: 0; 
  margin-bottom: 0.5rem;
  padding: 12px 1.25rem;
  border-radius: 0;
}
.obgv .res.strong.big .res-hd { color: #ffffff; font-size: 16px; font-weight: 700; }
.obgv .res.strong.big .res-val { font-size: 24px; font-weight: 800; }

/* Dilim detayı: direkt açık */
.obgv-brackets-wrap {
  margin-top: 1.5rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05);
  padding: 1rem;
}

.obgv-brackets-title {
  font-weight: 800;
  font-size: 13px;
  color: #e5e7eb;
  margin-bottom: 0.75rem;
}

.obgv-brackets {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.obgv-brk-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  border-radius: 0;
}
.obgv-brk-row:last-child { border-bottom: none; padding-bottom: 0; }

.obgv-brk-left { min-width: 0; }
.obgv-brk-range {
  font-weight: 600;
  font-size: 13px;
  color: #e5e7eb;
  margin-bottom: 2px;
}

.obgv-brk-meta {
  font-size: 11px;
  color: #94a3b8;
}

.obgv-brk-tax {
  font-weight: 700;
  font-size: 13px;
  color: #e5e7eb;
  white-space: nowrap;
}

/* Dilim Toplamı Satırı */
.obgv-brk-total {
  margin-top: 6px;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px dashed rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.1);
  color: var(--obgv-success);
  font-size: 12.5px;
  font-weight: 600;
}

.obgv-empty {
  font-size: 12px;
  color: #94a3b8;
  padding: 10px 12px;
  background: rgba(255,255,255,0.03);
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: 6px;
}

/* Note */
.obgv .note {
  margin-top: 1.5rem;
  font-size: 12px;
  line-height: 1.5;
  color: #94a3b8;
}
.obgv .note-strong { font-weight: 700; color: #cbd5e1; }
.obgv .note strong { color: #cbd5e1; }

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .obgv-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (max-width: 640px) {
  .obgv { padding: 0 0.5rem; margin: 0 auto 2rem; font-size: 13px; }
  .obgv-title { font-size: 20px; margin-bottom: 1.2rem; }
  
  .obgv-card { padding: 1.25rem !important; }
  
  .obgv .amount-row input,
  .obgv-select { font-size: 16px; }

  .obgv .res { padding: 4px 0; }
  .obgv .res.strong { margin: 0.2rem -1.25rem; padding: 6px 1.25rem; }
  .obgv .res.strong.big { margin-top: -1.25rem; margin-left: -1.25rem; margin-right: -1.25rem; margin-bottom: 1rem; padding: 16px 1.25rem; }
}